Sealey MM20HV Digitalni multimetar Uputstvo za upotrebu

1. Uvod

This manual provides detailed instructions for the safe and effective use of your Sealey MM20HV Digital Multimeter. The MM20HV is a heavy-duty, general-purpose multimeter designed for various electrical measurements, featuring a clear LCD display, data hold function, temperature probe, and diode test facility. It is housed in a rugged rubber boot with an integral stand for durability and convenience.

Molimo vas da pažljivo pročitate ovaj priručnik prije upotrebe uređaja i sačuvate ga za buduću upotrebu.

2. Sigurnosne informacije

Always observe basic safety precautions when using electrical testing equipment to reduce the risk of fire, electric shock, and personal injury.

• Pročitajte uputstva: Prije upotrebe, upoznajte se sa svim uputama za upotrebu i sigurnosnim upozorenjima.
• Pregledajte uređaj: Before each use, inspect the multimeter and test leads for any damage. Do not use if damaged.
• Proper Range: Uvijek odaberite ispravnu funkciju i raspon za mjerenje.
• Voltage Ograničenja: Do not exceed the maximum input limits specified for each range.
• Strujni krugovi pod naponom: Never measure resistance, continuity, or diode on a live circuit. Ensure power is off and circuits are discharged.
• izolacija: Keep fingers behind the probe barriers during measurements.
• Okruženje: Do not use the multimeter in wet conditions or in the presence of explosive gases or fumes.
• servisiranje: Refer all servicing to qualified personnel. Battery and fuse replacement are the only user-serviceable parts.

3. Šta se nalazi u kutiji

Upon unpacking, ensure all items listed below are present and undamaged:

• Sealey MM20HV Digital Multimeter
• Ispitni kablovi (crveni i crni)
• Thermocouple (Temperature Probe)
• Korisnički priručnik (ovaj dokument)

Slika 1: Sealey MM20HV Digital Multimeter shown with included test leads and thermocouple.

4. Podešavanje

4.1. Instalacija baterije

The Sealey MM20HV requires two AAA batteries for operation.

1. Pronađite poklopac odjeljka za baterije na stražnjoj strani multimetra.
2. Koristite odvijač da biste odvrnuli vijak koji pričvršćuje poklopac.
3. Insert two AAA batteries, observing the correct polarity (+ and -) as indicated inside the compartment.
4. Vratite poklopac odeljka za baterije i pričvrstite ga vijkom.

4.2. Povezivanje ispitnih vodova

Pravilno spajanje mjernih kabela je ključno za tačna i sigurna mjerenja.

• Insert the black test lead into the "COM" (Common) jack.
• Za većinu volumenatage, resistance, and continuity measurements, insert the red test lead into the "VΩmA" jack.
• For high current (up to 10A DC) measurements, insert the red test lead into the "10A DC" jack. Ensure the function dial is set to the appropriate current range.

Slika 2: Multimeter with black lead in COM and red lead in VΩmA jack.

5. Uputstvo za upotrebu

The Sealey MM20HV offers 8 functions for various electrical measurements.

5.1. Uključivanje/isključivanje

Rotate the central function dial from the "OFF" position to any desired measurement function to turn the multimeter on. To turn off, rotate the dial back to "OFF".

5.2. Measuring DC Voltage (V=)

1. Insert the black lead into the "COM" jack and the red lead into the "VΩmA" jack.
2. Set the function dial to the desired DC Voltage range (e.g., 200mV, 2V, 20V, 200V, 600V). If the voltagAko je e nepoznato, počnite s najvišim rasponom i smanjite ga po potrebi.
3. Spojite ispitne sonde preko komponente ili strujnog kola koje se mjeri.
4. Pročitajte voltage vrijednost na LCD zaslonu.

5.3. Mjerenje AC Voltage (V~)

1. Insert the black lead into the "COM" jack and the red lead into the "VΩmA" jack.
2. Set the function dial to the desired AC Voltage range (e.g., 200V, 600V).
3. Spojite ispitne sonde preko AC voltatage izvor.
4. Pročitajte voltage vrijednost na LCD zaslonu.

5.4. Measuring DC Current (A=)

Oprez: Never connect the multimeter in parallel with a voltage source when measuring current. Always connect in series with the load.

1. Insert the black lead into the "COM" jack.
2. For currents up to 200mA, insert the red lead into the "VΩmA" jack. For currents up to 10A, insert the red lead into the "10A DC" jack.
3. Set the function dial to the appropriate DC Current range (e.g., 2mA, 20mA, 200mA, 10A).
4. Otvorite strujni krug u kojem treba mjeriti struju i spojite multimetar serijski.
5. Očitajte trenutnu vrijednost na LCD zaslonu.

5.5. Measuring Resistance (Ω)

Upozorenje: Prije mjerenja otpora provjerite je li strujno kolo bez napona i da su svi kondenzatori ispražnjeni.

1. Insert the black lead into the "COM" jack and the red lead into the "VΩmA" jack.
2. Set the function dial to the desired Resistance range (e.g., 200Ω, 2kΩ, 20kΩ, 200kΩ, 2MΩ).
3. Spojite mjerne sonde preko komponente čiji otpor treba izmjeriti.
4. Očitajte vrijednost otpora na LCD ekranu.

5.6. Test zvučnog kontinuiteta

This function allows for quick checks of circuit continuity with an audible tone.

1. Insert the black lead into the "COM" jack and the red lead into the "VΩmA" jack.
2. Set the function dial to the continuity symbol (often shared with diode test).
3. Spojite ispitne sonde preko strujnog kola ili komponente.
4. Zvučni signal označava kontinuitet (nizak otpor). Na ekranu će se prikazati vrijednost otpora.

5.7. Diode/Transistor Verification

This function allows for testing diodes and transistors.

1. Insert the black lead into the "COM" jack and the red lead into the "VΩmA" jack.
2. Set the function dial to the diode symbol.
3. For diode testing, connect the red probe to the anode and the black probe to the cathode. The display will show the forward voltagpad e. Zamijenite mjesta sondama; na ekranu bi trebalo da se prikaže "OL" (otvorena petlja) za ispravnu diodu.
4. For transistor (hFE) testing, insert the transistor leads into the appropriate NPN or PNP sockets on the multimeter. The display will show the hFE value.

5.8. Measuring Temperature (°C)

The multimeter includes a thermocouple for temperature measurements.

1. Remove the test leads from the input jacks.
2. Insert the thermocouple plug into the "VΩmA" and "COM" jacks, observing polarity if indicated.
3. Set the function dial to the "°C" range.
4. Place the tip of the thermocouple on or near the object whose temperature is to be measured.
5. Read the temperature value in Celsius on the LCD display.

5.9. Funkcija zadržavanja podataka

Press the "HOLD" button (typically a green button on the front panel) to freeze the current reading on the display. Press it again to release the hold and resume live readings.

6. Održavanje

6.1. Čišćenje

Obrišite kućište oglasomamp cloth and mild detergent. Do not use abrasives or solvents. Ensure the device is off and disconnected from any circuits before cleaning.

6.2. Zamjena baterije

When the battery indicator appears on the display, replace the batteries as described in Section 4.1. Always use fresh AAA batteries.

6.3. Zamjena osigurača

If the current measurement function stops working, the fuse may need replacement.

1. Provjerite je li multimetar isključen i da su svi mjerni kabeli odvojene.
2. Remove the battery compartment cover and batteries.
3. Locate the fuse(s) inside the compartment. The MM20HV typically uses a 200mA/250V fast-blow fuse for the mA range and a 10A/250V fast-blow fuse for the 10A range.
4. Pažljivo uklonite stari osigurač i zamijenite ga novim osiguračem istog tipa i nazivne vrijednosti.
5. Replace the batteries and battery compartment cover.

Važno: Never use a fuse with a different rating or bypass a fuse. This can damage the multimeter and pose a serious safety hazard.

7. Otkrivanje problema

8. Specifikacije

The following table outlines the technical specifications for the Sealey MM20HV Digital Multimeter.

Napomena: Specifikacije se mogu promijeniti bez prethodne najave.

9. Garancija i podrška

For information regarding warranty coverage, technical support, or service, please refer to the warranty card included with your product or contact Sealey customer service directly. Contact details are typically available on the manufacturer's official website.